baber/WOPTO huggingface dataset:
Patent CA-2186928-C (CA)
Inventor: COUSE PETER
IPC: H04M1/27475
Filed: 1996-10-01
Granted: 2001-06-12
Abstract: A computer-based telephony system, comprising: a telephone set for implementing telephony functions on a telephone line, said telephone set including a serial interface for bidirectional communication of data signals; and a computer executable software application for receiving first ones of said data signals from said telephone set and in response implementing predetermined software functions, and for transmitting further ones of said data signals to said telephone set in response to a user input whereupon said telephone set implements predetermined ones of said telephony functions.
Patent CA-2188360-C (CA)
Title: Apparatus and method for discharging and charging a multiple battery arrangement
Inventor: BARKAT SHAKIL H
IPC: H02J7/00
Filed: 1996-10-21
Granted: 1999-12-21
Abstract: A device (100) includes detachable main and auxiliary batteries (101, 102) and a circuit (310) for discharging and charging the batteries (101, 102). Discharging is accomplished by an auxiliary switch (420) that connects the auxiliary battery (102) to power the device (100), a detector (422), and a main switch (424) that connects the main battery (101) to power the device (100), without interruption, when the auxiliary battery (102) drops below a predetermined voltage (508) as determined by a detector (422). Charging is performed by switches (440, 442, 446), an internal charger (444), and a controller (306). When both batteries (101, 102) are attached, the controller (306) uses the switches (440, 442, 446) to select and couple charging current generated by the internal charger (444) to the main battery (101). Once charged, the controller (306) switches to charge the auxiliary battery (102).
Patent CA-2188980-C (CA)
Inventor: HOLSTEIN HERBERT
IPC: B23D43/02
Filed: 1996-10-28
Granted: 2000-05-30
Abstract: An internal broach for the broaching of profiles defined by a bottom and flanks, in particular of internal toothings, in a workpiece is provided with broach cutting teeth which have bottom-cutting edges and flank-cutting edges. Over their full profile height, the flank-cutting edges of broach cuttingteeth disposed one after the other and allocated to each other have an ascending profile in the range of 1µm to 3µm
Patent CA-2190256-C (CA)
Title: Process for preparing aromatic or heteroaromatic sulfonyl halides
Inventor: KARINO HITOSHI
IPC: C07D275/03
Filed: 1995-12-25
Granted: 2007-08-07
Abstract: A process for preparing an aromatic or heteroaromatic sulfonyl halide of the general formula (3): Ar-(-SO2Y)n by halogenating an aromatic or heteroaromatic methyl sulfide of the general formula (1): Ar-(-SCH3-mXm)n or an aromatic or heteroaromatic methyl sulfoxide of the general formula (2): Ar-(-SOCH3-mXm)n with a halogenating agent in the presence of water (wherein Ar is an optionally substituted aromatic or heteroaromatic ring; X and Y are each halogeno; m is an integer of 0 to 3; and n is 1 or 2). This process enables industrial, uncostly and easy production of aromatic or heteroaromatic sulfonyl halides.
Patent CA-2199335-C (CA)
Inventor: DOBSON DAVID A
IPC: A01B61/04
Filed: 1997-03-06
Granted: 2001-02-06
Abstract: The spring trip assembly has lever mechanism between the shank and the compression spring which causes the trip-out force of the shank to drop sharply once the relatively high, initial trip-out force level has been reached, thus permitting the shank to slide up and over obstructions without breakage. The compression spring is actuated from both ends simultaneously as the shank rises so that although the trip force drops off quickly, energy also builds up quickly in the spring. Thus, the trip force does not drop as low as it otherwise would, assuring that ample return force is available to reset the shank down into the soil in its working position. Various components of the assembly can be removed and replaced easily without disassembling the entire unit from the tool bar.
Patent CA-2201877-C (CA)
Inventor: SMITH KURT R
IPC: A61B19/00
Filed: 1995-10-05
Granted: 2004-06-08
Abstract: This invention is a system for use during a medical or surgical procedure on a body. The system generates an image representing the position of one or more body elements (10), (20), (30) using scans generated by a scanner prior or during the procedure. The image data set has reference points (10A-30C) for each of the body elements, the reference points of a body element having a fixed spatial relation to the body element. The system includes an apparatus (108) for identifying the relative position of each of the reference points of each of the body elements to be displayed. The system also includes a processor (104) for modifying the image data set according to the identified relative position of each of the reference points during the procedure. Also disclosed are devices for use with a surgical navigation system having a sensor array (110), (112) in communication with the device to identify its position.
Patent CA-2206710-C (CA)
Title: Regeneration of dithiophosphorus acid metal extractants
Inventor: LOVE BRUCE JOHN
IPC: C22C21/00
Filed: 1997-06-02
Granted: 2000-10-31
Abstract: The invention provides a method of regenerating dithiophosphorus extractants such as dithiophosphoric acids, dithiophosphonic acids and dithiophosphinic acids from their sulfur-sulfur bonded oxidation products contained in an organic solution. The process generates active hydrogen for regenerating the spent dithiophosphorus. extractants. Advantageously, this active hydrogen originates either from introducing a reactive metal into a liquid mixture containing the organic solution and an acidic aqueous solution to form nascent hydrogen or from using hydrogen gas in the presence of a catalyst in the organic solution. The active hydrogen generated in the process breaks thesulfur-sulfur bonds of the dithiophosphorus molecules to form the corresponding dithiophosphorus acids.
Patent CA-2208758-C (CA)
Title: Fluid metering device
Inventor: VAN DEN WILDENBERG ADRIANUS MA
IPC: F02M69/50
Filed: 1995-12-29
Granted: 2003-04-15
Abstract: A fluid metering device, for instance for a fuel supply system of a combusti on engine having combustion chambers, which fluid metering device comprises at least one supply line connection (1) and at least one discharge line connection (2), the fluid metering device being provided with two sets of outlet ports (3,4) which put the or each discharge line connection (2) into fluid communication with a fluid chamber (5), which fluid chamber (5) is put into fluid communication, via at least one inlet port (6), with the at least one supply  line connection (1), a first and a second regulating plunger (7 and 8 respectivel y) controlling the fluid flow rate through, respectively, the first and the second set of outlet ports (3 and 4 respectively) by covering at least partly the through-flow surface of, respectively, the first and the second set of outle t ports (3 and 4 respectively), each regulating plunger (7,8) comprising energizing means (9 and 10 respectively) of its own for controlling the respective positions of the regulating plungers (7,8).
Patent CA-2213282-C (CA)
Title: Composite exhibiting elastic-like behavior
Inventor: WOLF SCOT GERALD
IPC: A61F5/44
Filed: 1996-03-01
Granted: 2001-06-26
Abstract: A composite exhibiting an elastic-like behavior in response to an applied axial elongation along at least one axis thereof. The composite includes a first web material in a relaxed condition bonded to a stretched second web material. The stretched second web material includes a strainable network having first and second regions formed of substantially the same material composition. The first region provides a first, elastic-like resistive force to applied axial elongation and the second region provides a second distinctive resistive force to further applied axial elongation, thereby providing at least two stages of resistive forces in use.
Patent CA-2213490-C (CA)
Inventor: SCHIEG RUDOLF
IPC: B01F27/96
Filed: 1996-03-27
Granted: 2005-02-22
Abstract: The invention refers to a device for mixing chemicals into a pulp suspension, where a high-speed rotor (5) with an open center is mounted inside a mixing chamber (2). It is mainly characterized by at least one further high-speed rotor (5') with open center being provided, the areas covered by these rotors (5, 5') overlapping and the spacing between the axis of the rotors (5, 5') being selected so that the rotor arms (8, 8') extend almost to the center of at least one other rotor (5, 5').
Patent CA-2214633-C (CA)
Title: Antibody purification by low-ph hydrophobic interaction chromatography
Inventor: RINDERKNECHT ERNST H
IPC: C07K16/44
Filed: 1996-04-05
Granted: 2009-02-24
Abstract: A process for purifying an antibody is provided. In this process, a mixture containing the antibody and a contaminant is subjected to low pH hydrophobic interaction chromatography (LPHIC) at low salt concentration. The antibody is eluted from the column in the fraction which does not bind thereto. This process can be preceded and followed by other purification steps.
Patent CA-2219197-C (CA)
Title: Injection molding apparatus having melt transfer and dividing bushing
Inventor: BABIN DENIS L
IPC: B29C45/26
Filed: 1997-10-23
Granted: 2006-12-05
Abstract: Multi-layer injection molding apparatus having integral melt transfer and dividing bushings extending from a rear melt distribution manifold through openings in a front melt distribution manifold to aligned heated nozzles.  Each bushing has two or three integral layers which are drilled and machined to have melt holes through them connected to melt conduits between them which divides one melt flowing from the rear melt distribution manifold to several bores extending to an annular melt channel in the aligned heated nozzle. In some embodiments, the bushing can also divide a second melt flowing from the front melt distribution manifold to another annular channel in the aligned heated nozzle.
Patent CA-2227217-C (CA)
Inventor: EYRES ALAN
IPC: G02B6/40
Filed: 1996-08-08
Granted: 2002-10-15
Abstract: A method for providing a building or other location with an optical fibre element, for example fibres (14) or a ribbon cable, that is terminated by a connector (1), comprises: a) introducing a leading end of the optical fibre element into the bore of a duct and propelling the element along the duct by  fluid drag of a gaseous medium, the element being terminated at at least its  leading end by an insert (4) for the connector; and b) after the element has  been propelled along the duct, locating a housing (6) about the insert to fo rm the connector. The invention also provides an assembly for use in such a method. The method and assembly enable optical fibre elements to be terminat ed in the factory rather than on site, and then to be installed by blown fibre methods, even when the elements are terminated by connectors that are too large to be inserted in the duct.
Patent CA-2229198-C (CA)
Inventor: HAYNES MICHAEL JONATHON
IPC: E21B33/04
Filed: 1998-02-10
Granted: 2002-04-23
Abstract: A tubing hanger and a method for axially displacing tubing string in a cased well bore without removing the wellhead from the well are described. The tubing hanger consists of a primary tubing hanger component engageable with the wellhead and a secondary tubing hanger component removably received in the cavity of the primary tubing hanger component. When downhole operations require axial displacement of the tubing string, the secondary tubing hanger component is disengaged from the primary tubing hanger component and stroked up through the wellhead to permit tubing joints to be added or removed. Such axial displacement of the tubing string facilitates downhole operations such as the repositioning of a zone isolating tool, the logging of a production zone, the removal of debris such as sand from a sand trap, selective stimulation of a production zone, and other localized downhole operations which require or are facilitated by tubing string manipulation. The advantage is the ability of axially displace the tubing string without removing the wellhead which saves time and significantly reduces costs.
Patent CA-2229596-C (CA)
Title: Trou d'interconnexion electrique, scelle hermetiquement, prevu pour etre utilise dans des dispositifs electroniques implantables
Inventor: CANFIELD LYLE DEAN
IPC: H05K1/03
Filed: 1996-08-14
Granted: 2001-10-16
Abstract: L'invention concerne un trou d'interconnexion (30) électrique, mince, scellé hermétiquement, approprié pour les dispositifs prévus pour être implantés dans des tissus vivants. Ce trou permet une connexion électrique entre des circuits électroniques (50) placés dans un boîtier scellé hermétiquement (10) et des bornes électriques (36, 36') ou des contacts ménagés sur l'extérieur du boîtier. Le boîtier hermétique (10) est fabriqué par soudure hermétique d'un couvercle (40) à une première couche isolante (22). Le trou d'interconnexion électrique scellé hermétiquement est réalisé par dépôt d'un ruban conducteur (32) sur une deuxième couche isolante (26) et par dépôt de la première couche isolante (22) sur cette dernière, de sorte que le ruban conducteur est enveloppé avec étanchéité entre les couches isolantes. Au moins deux ouvertures espacées sont formées dans les couches isolantes, avant la soudure du couvercle à ces dernières, de sorte que le ruban conducteur soit exposé. Un autre matériau conducteur est ensuite inséré dans chacune des ouvertures ou des trous afin de former des traversées conductrices (35, 36) qui assurent un contact électrique avec le ruban conducteur (32). Le couvercle est ensuite scellé avec étanchéité à la première couche isolante (22) de sorte qu'au moins une traversée conductrice (35) se situe dans une cavité scellée hermétiquement (42) formée sous le couvercle, et l'autre traversée conductrice (36) réside à l'extérieur de la cavité fermée avec étanchéité. Un trou d'interconnexion électrique (32) est ainsi formé à travers les traversées conductrices respectives (35, 36) et le ruban conducteur (32) de sorte qu'il est possible d'assurer un contact électrique entre l'extérieur et l'intérieur de la cavité scellée hermétiquement (42).
Patent CA-2233522-C (CA)
Inventor: WERNER JEAN-JACQUES
IPC: H03H21/00
Filed: 1998-03-30
Granted: 2001-06-05
Abstract: A decision feedback equalizer (DFE) comprises a feed-forward filter and a feedback filter. Blind training of the DFE is performed using a statistical-based tap updating algorithm for the feed-forward filter, and a symbol-based type of tap updating algorithm for the feedback filter.
Patent CA-2244631-C (CA)
Title: Method of and an apparatus for generating pseudo-random numbers
Inventor: SHIMADA MICHIO
IPC: H04L9/22
Filed: 1998-08-06
Granted: 2001-02-06
Abstract: To provide an apparatus for generating pseudo-random numbers at a high speed with sufficient cryptographical security, the apparatus comprises: a T-ary counter (101) for generating a count number from 0 to T ~ 1 cyclically by incrementing the count number in synchronization with a clock signal; a modulus memory (103) for outputting a prime number read out from T prime numbers prepared therein according to a value of the count number; an n-bit register (102) for registering and outputting an n-bit value in synchronization with the clock signal; an expanded affine transformation circuit (104) for outputting an intermediate number, by performing expanded affine transformation of the n-bit value registered in the n-bit register (102) according to the prime number, the n-bit value being revised with the intermediate number in synchronization with the clock signal; and a demagnification circuit (105) for outputting certain s bits of the intermediate number as one of the pseudo-random numbers in synchronization with the clock signal.
Patent CA-2247718-C (CA)
Inventor: OGATA HIROKI
IPC: A63F13/285
Filed: 1998-09-21
Granted: 2008-01-29
Abstract: An actuating device for a game machine is disclosed in which the hand or fingers do not fatigue on prolonged use, thereby imparting an optimum feel for the user. The actuating device has a main body unit and first and second grips projecting from one side of the main body unit at opposite ends thereof. Vibration-imparting units are enclosed within the first and second grips. First and second actuating units are mounted at opposite ends of the main body unit. The first and second actuating units include plural thrusting actuators which protrude from the upper surface of the main body unit. Third and fourth actuating units are arranged on the proximal ends of the first and second grips so as to confront one another. The third and fourth actuating units include rotation actuators and signal input elements actuated by the rotation actuators. The portions of the rotation actuators which actuate the third and fourth actuating units are provided with top portions of a flexible material having outwardly bulging distal end portions.
Patent CA-2250220-C (CA)
Title: Process for the purification of butane-1,4-diol
Inventor: SHARIF MOHAMMAD
IPC: C07C31/20
Filed: 1997-03-27
Granted: 2006-09-12
Abstract: The invention provides a process for the purification of a butane-1,4-diol feed containing a minor amount of the cyclic acetal, 2-(4'-hydroxybutoxy)-tetrahydrofuran, which comprises hydrogenating the butane-1,4-diol feed in a hydrogenation zone in the presence of a minor amount of water and of a hydrogenation catalyst, and recovering from the hydrogenation zone a butane-1,4-diol product that has a reduced 2-(4'-hydroxybutoxy)-tetrahydrofuran content compared with the butane-1,4-diol feed.
Patent CA-2254096-C (CA)
Title: Cutting tooth for earthworking
Inventor: SEITLE IGNAZ
IPC: E02F5/06
Filed: 1998-11-13
Granted: 2003-07-29
Abstract: The invention relates to a cutting tooth to be fitted in a cutting-tooth holder of an earthworking appliance having at least one cutter which is mounted ahead of a cutter-support region, as seen in the cutting direction, and has at least one cutting edge, wherein the size of the cross-sectional areas of the cutter-support region which lie perpendicular to the cutting advance direction and intersect the at least one cutting edge remains approximately constant in at least one area which is delimited by in each case two such cross-sectional areas. This allows an efficient cutting advance combined with a simple design even in the event of wear to the advance side facing in the cutting advance direction.
Patent CA-2271698-C (CA)
Inventor: VON OEPEN RANDOLF
IPC: A61F2/915
Filed: 1999-05-14
Granted: 2005-05-10
Abstract: A radially expandable stent for implanting in a body vessel, in particular in the area of a vascular branching, which has at least one section (12) with radial openings (13), the border of (14) of which is striated, at least by area, and forms one or more loops (15) and/or recesses.
Patent CA-2272792-C (CA)
Title: Multi-purpose, low-load angle trailer with laterally extendable winch arms
Inventor: LANDOLL DONALD R
IPC: B60P1/64
Filed: 1999-05-21
Granted: 2005-09-06
Abstract: A trailer winch assembly (100) is provided for loading containers (52,53,94,96) onto a trailer (50).      The winch assembly (100) comprises two movable winch apparatuses (102,104) mounted on a winch transport assembly (106) controlled by a control mechanism (80,82).      The winch transport assembly (106) moves the winches (102,104) beyond the sides (64,66) of the trailer (50) to align containers (52,53,96) and load rear containers behind front containers. A wheel assembly (200) having a rigid wheel frame (202), a wheel (206) rotatably and slidable supported in the wheel frame (202), and an attachment assembly (204) utilizes a jack (298) to raise the container onto the wheel for movement of the container. Inversion members (300) are attached to the side (63,66) of the trailer (50) to substantially invert the pull direction (130) of the winches (102,104) to off-load containers. An off-load foot (350) including a downwardly extending leg (354) having a base (396) for engaging a ground surface (85) is utilized to off-load containers. A cable guide (400) having a guide portion (404) and an elongated stake (402) receives the winch cable (110) and alters the pulling direction (130) of the winch (102) to align the container with the trailer. A container guide (420) including a container body (422,456), an attachment mechanism (424,458) for attaching to the container, and a downwardly extending member (428,462) contacts the sides of the trailer (64,66) to align the containers and keep the containers in alignment with the trailer. A container lockdown mechanism (500) includes a securement member (504) attached to the trailer (50), an attachment member (502), and an extension member (506) extended between the container and the securement member (504) to hold the container (52) on the trailer (50).
Patent CA-2272871-C (CA)
Title: Biopsy forceps instrument having irrigation and aspiration capabilities
Inventor: MCBRAYER MICHAEL SEAN
IPC: A61B10/00
Filed: 1997-11-24
Granted: 2005-12-27
Abstract: A biopsy forceps instrument (10) is provided having a proximal actuation handle (12), a flexible multi-lumen tubular member (14), at least one control member (23) extending through a lumen(70), an irrigatio n means (24, 25), an aspiration means (26, 27), and a distal assembly (22). The proximal actuation handle (12) includes a shaft (30) and a spool (34) slidably mounted on the shaft (30). The actuation handle (12) is coupled to the proximal ends of both the flexible tubular member (14) and the control member (23). Lumens of the tubular member (14) form irrigation and aspiration conduits (72, 74). The distal assembly (22) includes a hollow jaw cup (88) coupled to the aspiration conduit (74), and a hollow movable jaw (90) coupled to the irrigation conduit (72). The movable jaw (90) is coupled to the control member (23), such that actuation of the actuation handle (12) moves the movable jaw (90) relative to the jaw cup (88). Moving the hollow jaw (90) into a closed position provides a substantially fluidtight coupling between the irrigation and aspiration conduits (72, 74).
Patent CA-2274428-C (CA)
Inventor: FITZGERALD SANFORD G
IPC: G08B21/22
Filed: 1999-06-11
Granted: 2004-02-17
Abstract: The present invention relates generally to an apparatus for monitoring the occupancy status of a toilet seat. In more particular, it applies to a pressure sensitive switch that can be used in combination with an electronic monitoring device to notify a nearby care-giver or a remote nurse's station that a patient has raised himself or herself from the toilet. Broadly speaking, the instant device is composed of two elements - a pressure sensitive switch and an actuator - that are installed between the toilet seat and the upper rim of the toilet bowl. Pressure on the toilet seat is communicated via the actuator to the pressure sensitive switch which, when compressed, completes an electrical circuit. When the pressure is removed, the electrical circuit is broken, thereby signaling that the patient has risen from his or her seated position on the toilet.